'''Delta Upsilon''' ('''ΔΥ''') is the seventh oldest extant, all-male, college Greek Letter Organizations#Greek letters|Greek-letter
organization in North America. Founded on November 4, 1834, at Williams College
in Williamstown, Massachusetts
, it is popularly and informally known as "Delta U" or "DU" and its members sometimes called "DUs". Though historically set at New England
private universities, as of 2012 it had 76 chapters across the United States and Canada.
A number of its buildings are listed on the National Register of Historic Places
In 2013, ''Business Insider
'' named Delta Upsilon one of the "17 Fraternities with Top Wall Street Alumni".
Notable members include president of the United States James A. Garfield
, president of Colombia Juan Manuel Santos
, Canadian prime minister Lester B. Pearson
, Linus Pauling
, Joseph P. Kennedy